I'm interested in Pdf Indexer.
Demo is used using also Edocman.
Can the extension be used also without Edocman? What is the output in that case? Links point to pdf files?
I can only use chmod 775, not 777 files: is it a problem?
You can use PDF Indexer extension of us: joomdonation.com/joomla-extensions/joomla-pdf-indexer.html
it works independently and doesn't depend on Edocman extension.
PDF Indexer extensions uses the library called: pdftotext, this library should have permission 777 to make it to work stably, but you just need to change permission of that file, so there aren't any security problems here.